Critical-state effects on microwave losses in type-II superconductors
arXiv:cond-mat/0603646 · doi:10.1140/epjb/e2006-00320-9
Abstract
We discuss the microwave energy losses in superconductors in the critical state. The field-induced variations of the surface resistance are determined, in the framework of the Coffey and Clem model, by taking into account the distribution of the vortex magnetic field inside the sample. It is shown that the effects of the critical state cannot generally be disregarded to account for the experimental data. Results obtained in bulk niobium at low temperatures are quantitatively justified.
arXiv comment4 pages, 4 embedded figures, to be published on Eur. Phys. J. B
References in corpus (4)
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- Critical State Flux Penetration and Linear Microwave Vortex Response in YBa_2Cu_3O_{7-x} Films
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- Electromagnetic response of LaO_0.94F_0.06FeAs: AC susceptibility and microwave surface resistance
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- Effect of boron doping in the microwave surface resistance of neutron irradiated melt-textured Y_1.6Ba_2.3Cu_3.3O_7-x samples
- Fluxon dynamics in Li-Al codoped MgB2 by microwave surface resistance measurements